[Pdns-users] Additional UDP ports

[Yves Goergen]

Hello,

I've noticed that the PDNS server listens on more than the configured 
ports. There are several other UDP ports open:

> ss -ulpn |egrep 'State|pdns'
> State  Recv-Q Send-Q  Local Address:Port  Peer Address:Port Process
> UNCONN 0      0       192.168.81.35:53         0.0.0.0:*     users:(("pdns_server",pid=1585,fd=5))
> UNCONN 0      0           127.0.0.1:53         0.0.0.0:*     users:(("pdns_recursor",pid=1077,fd=4))
> UNCONN 0      0             0.0.0.0:19990      0.0.0.0:*     users:(("pdns_server",pid=1585,fd=18))
> UNCONN 0      0                [::]:53            [::]:*     users:(("pdns_server",pid=1585,fd=6))
> UNCONN 0      0                   *:13618            *:*     users:(("pdns_server",pid=1585,fd=19))

Here it's port numbers 19990 and 13618. Other servers seem to have other 
port numbers.

What does that mean? Is it used for something? Can it be configured away?

-Yves